Good afternoon, all!
We have a new Exchange 2013 installation and have run into a minor roadblock.
We're using a site-to-site VPN for mail to & from a major customer. The new Exchange servers don't know about this and are routing mail over the Internet. I suspect the customer is blocking that Internet mail because of the VPN tunnel that took production and legacy email.
I have two datacenters with Edge Transport servers in each DC sending out mail. They connect to either of the Mailbox/CAS servers in the production environment so either server can respond to either Edge Transport server.
I found this document from Exchange 2007 that shows the outline for doing this. Has anything significant changed between Exchange 2007 and 2013 in this arena?
Thanks for looking!
Gregg